What is the difference between a semi-precious and a precious stone?
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How is the age of mountains calculated?
What is the difference between a canyon, gorge, and valley?
What is rock cycle?
What is lustre?
Explain the process of formation of sedimentary rocks?
What is inorganic matter?
What is matte?
What layer of the earth does magma form?
Explain what does a geologist do on a typical day?
Explain how has the earth changed since it was formed?
Explain the name of the largest volcano in the world?
Define ablation?